[data_maan]

This! Other people wrote about counter DMCA takesdowns. This goes beyond DMCA notices.

The regulator should notice that serving sketchy DMCA notices is a form of denial of service. An consequently, if the DMCA is ruled to be unfounded, there should be heavy pubishment for the issuer as well as the enforcer (Google in this case).

[ignaloidas]

FWIW the platform must respond to DMCA requests, by law, without it's own saying in the matter. They only can check if the request satisfies the minimum requirements of DMCA. Punishment for the enforcer wouldn't fly.

[account42]

Platform must respond to valid DMCA requests. Valid DMCA requests are for copyright infringement - there is no such thing as a DMCA takedown request for circumvention tools, that still requires court involvement.